Fire officials said they want to make sure every home in the city has a working smoke detector, and if they don't, they want people to know it's very easy to get one.

The city's 311 smoke detector program guarantees that anytime someone calls, fighters will be out within two hours to install a working smoke detector on every floor of that person's home.

More than 300 firefighters were involved in Sunday's event, checking for smoke detectors and reminding people of potential hazards, such as running extension cords from one cord to another.

"We feel people may get complacent and may feel, 'This is not going to happen to me.' If we keep this message right before their faces, we feel more people will become mindful of basic fire safety practices they conduct in their homes," said Fire Department spokesman Kevin Cartwright.

Meanwhile, a memorial service will be held Thursday evening for Nancy Worrell, her three grandchildren and her great grandson, all of whom were killed in the rowhome blaze in the 5600 block of Denwood Avenue. Officials are still looking for a cause of that blaze.

Nancy Worrell's husband, Wilson Worrell, is still listed in serious condition at a local hospital after his family said he jumped from a window to escape the blaze and landed on his head.